# Claude Opus 4.8 vs GLM 5.2

As of Oct 14, 2026, Claude Opus 4.8 leads GLM 5.2 in 5 of 7 shared categories: General LLM, Reasoning, Long context, Factuality, and Abstraction (ARC).

Claude Opus 4.8: $10 per 1M blended tokens.

GLM 5.2: $1.7799999999999998 per 1M blended tokens.

Claude Opus 4.8: closed weights.

GLM 5.2: open weights.

- Which to pick, General LLM: As of Oct 14, 2026, Claude Opus 4.8 leads GLM 5.2 in General LLM at #20 against #26.
- Which to pick, Reasoning: As of Oct 14, 2026, Claude Opus 4.8 leads GLM 5.2 in Reasoning at #10 against #30.
- Which to pick, Science: As of Oct 14, 2026, GLM 5.2 leads Claude Opus 4.8 in Science at #23 against #27.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, GLM 5.2 leads Claude Opus 4.8 in Coding › Web dev at #23 against #33.
- Which to pick, Long context: As of Oct 14, 2026, Claude Opus 4.8 leads GLM 5.2 in Long context at #10 against #25.
- Which to pick, Factuality: As of Oct 14, 2026, Claude Opus 4.8 leads GLM 5.2 in Factuality at #21 against #31.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, Claude Opus 4.8 leads GLM 5.2 in Abstraction (ARC) at #12 against #29.

As of Oct 14, 2026, Claude Opus 4.8 is a former state-of-the-art holder in Coding › Web dev (since Jun 5, 2026; sources LMArena WebDev; methodology v1.0).

As of Oct 14, 2026, GLM 5.2 is a former state-of-the-art holder in Coding › Web dev (since Jun 18, 2026; sources LMArena WebDev; methodology v1.0).